qemu/qobject/qfloat.c

63 lines
1.2 KiB
C

/*
* QFloat Module
*
* Copyright IBM, Corp. 2009
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qapi/qmp/qfloat.h"
#include "qapi/qmp/qobject.h"
#include "qemu-common.h"
/**
* qfloat_from_int(): Create a new QFloat from a float
*
* Return strong reference.
*/
QFloat *qfloat_from_double(double value)
{
QFloat *qf;
qf = g_malloc(sizeof(*qf));
qobject_init(QOBJECT(qf), QTYPE_QFLOAT);
qf->value = value;
return qf;
}
/**
* qfloat_get_double(): Get the stored float
*/
double qfloat_get_double(const QFloat *qf)
{
return qf->value;
}
/**
* qobject_to_qfloat(): Convert a QObject into a QFloat
*/
QFloat *qobject_to_qfloat(const QObject *obj)
{
if (!obj || qobject_type(obj) != QTYPE_QFLOAT) {
return NULL;
}
return container_of(obj, QFloat, base);
}
/**
* qfloat_destroy_obj(): Free all memory allocated by a
* QFloat object
*/
void qfloat_destroy_obj(QObject *obj)
{
assert(obj != NULL);
g_free(qobject_to_qfloat(obj));
}